MEXICO CITY: A jetliner from the beach resort of Cancun was briefly hijacked as it landed in Mexico City on Wednesday. The hijackers released all passengers shortly before federal police stormed the plane, and the crew emerged unharmed moments later.

Police, who did not fire a single shot, led as many as eight handcuffed men away from the airplane, which was isolated at the end of a runway in an area designed for emergencies. The hijackers’ motive was unclear, though Mexican news media initially identified them as Bolivians demanding to speak with Mexican President Felipe Calderon.

US, French and Mexican citizens were among the 112 passengers and crew on Aeromexico Flight 576, according to a US official who had been briefed on the situation. The official was not authorized to discuss the case and spoke on condition of anonymity.

Mexico’s transportation and communications secretary, Juan Molinar, said there was no bomb on the airplane, although some passengers said one of the hijackers held a package that resembled an explosive device, and a bomb squad (拆弹小组) was later seen near the airplane.

He did not immediately identify the hijackers or speculate on their motive.

“Various people who participated in the act have been detained and we are investigating,” Molinar said.

The attorney general’s office said it was opening an investigation into terrorism and kidnapping but did not specify how many people could be charged.

Mexican news media initially reported the hijackers were Bolivian, but Bolivia’s ambassador to Mexico, Jorge Mancilla, said Mexican authorities had no evidence that was the case. Mancilla said sources told him they could be Colombian or Venezuelan. Several passengers told reporters they did not notice a non-Mexican accent.

    Passenger Rocio Garcia told the Televisa network that the pilot made an announcement after landing in Mexico City that the airplane was being hijacked. Passengers said the hijackers never communicated with them directly.

“These were scary moments,” she said.

    She said she saw one of the hijackers whom she described as a well-dressed, older man.

    “He looked fine, like a normal passenger,” she said.

    Passenger Daniel Hernandez said he saw a hijacker carrying a Bible.

From the first paragraph we can conclude that _________.

A. the hijackers just wanted to play a trick on the police

B. the hijackers didn’t prepare for their action

C. the hijackers surrendered before the police fired

D. the hijackers lost their way at the last moment

From what Juan Molinar said we can learn that _________.

A. police were still trying to identify a possible bomb

B. passengers succeeded in stopping the explosion

C. a frightening bomb was found later on the airplane

D. several Mexicans were involved in the hijacking

What may be the first step taken when the hijacked plane landed?

A. They gave a sudden attack at the hijackers.

B. They kept the plane away from other planes.

C. They asked the crew to control the hijackers.

D. They abandoned the plane at the end of the runway.

The hijackers, as some passengers described, _________.

A. were good at bargaining with the police        

B. were all well-dressed American old men

C. all came from Colombia or Venezuela           

D. stayed calm and appeared noble, educated

第三部分：阅读理解（共20小题;每小题2分, 满分40分）
阅读下列短文，从每篇短文后所给各题的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。
MEXICO CITY： A jetliner from the beach resort of Cancun was briefly hijacked as it landed in Mexico City on Wednesday. The hijackers released all passengers shortly before federal police stormed the plane, and the crew emerged unharmed moments later.
Police, who did not fire a single shot, led as many as eight handcuffed men away from the airplane, which was isolated at the end of a runway in an area designed for emergencies. The hijackers’ motive was unclear, though Mexican news media initially identified them as Bolivians demanding to speak with Mexican President Felipe Calderon.
US, French and Mexican citizens were among the 112 passengers and crew on Aeromexico Flight 576, according to a US official who had been briefed on the situation. The official was not authorized to discuss the case and spoke on condition of anonymity.
Mexico’s transportation and communications secretary, Juan Molinar, said there was no bomb on the airplane, although some passengers said one of the hijackers held a package that resembled an explosive device, and a bomb squad (拆弹小组) was later seen near the airplane.
He did not immediately identify the hijackers or speculate on their motive.
“Various people who participated in the act have been detained and we are investigating,”Molinar said.
The attorney general’s office said it was opening an investigation into terrorism and kidnapping but did not specify how many people could be charged.
Mexican news media initially reported the hijackers were Bolivian, but Bolivia’s ambassador to Mexico, Jorge Mancilla, said Mexican authorities had no evidence that was the case. Mancilla said sources told him they could be Colombian or Venezuelan. Several passengers told reporters they did not notice a non-Mexican accent.
Passenger Rocio Garcia told the Televisa network that the pilot made an announcement after landing in Mexico City that the airplane was being hijacked. Passengers said the hijackers never communicated with them directly.
“These were scary moments,”she said.
She said she saw one of the hijackers whom she described as a well-dressed, older man.
“He looked fine, like a normal passenger,”she said.
Passenger Daniel Hernandez said he saw a hijacker carrying a Bible.
51．From the first paragraph we can conclude that _________.
A．the hijackers just wanted to play a trick on the police
B．the hijackers didn’t prepare for their action
C．the hijackers surrendered before the police fired
D．the hijackers lost their way at the last moment
52．From what Juan Molinar said we can learn that _________.
A．police were still trying to identify a possible bomb
B．passengers succeeded in stopping the explosion
C．a frightening bomb was found later on the airplane
D．several Mexicans were involved in the hijacking
53．What may be the first step taken when the hijacked plane landed?
A．They gave a sudden attack at the hijackers.
B．They kept the plane away from other planes.
C．They asked the crew to control the hijackers.
D．They abandoned the plane at the end of the runway.
54．The hijackers, as some passengers described, _________.
A．were good at bargaining with the police       
B．were all well-dressed American old men
C．all came from Colombia or Venezuela          
D．stayed calm and appeared noble, educated

Scientists in the United States have developed a method that may help to predict earthquakes earlier. They say it could give people who live in deadly earthquake areas enough warning to leave before an earthquake occurs.
Currently, the most modern systems for predicting earthquakes find them only a short time before the event. Like most strong earthquakes, Wenchuan earthquake in 2008 and Haiti earthquake in 2010 were not identified early enough for people to flee the area, killing hundreds and thousands of people.
But scientists who study earthquakes are reporting that new technology could measure very small changes in the Earth’s surface.
Scientists performed experiments along California’s San Andreas Fault, an area famous for its earthquakes. Highly sensitive electrical devices are placed about one kilometer below ground in two different places. The devices were able to measure even small changes in air pressure on the Earth’s surface. The scientists say such changes are caused when rocks pushed together, forcing air out of small cracks in the rock.
Two earthquakes hit the area in late 2005. The first took place on Dec.25. A smaller earthquake struck five days later. The scientists noted changes in the earth’s surface about ten hours before the first quake struck. That quake measured three in intensity(强度). They then found similar changes taking place two hours before the other quake struck five days later.
If additional tests confirm the changes are linked to earthquakes, the scientists believe their equipment could be used for early warning systems. A system that provides a warning signal ten hours before a major earthquake could help move people from the area and save lives.
The scientists now hope they can find earthquakes with even greater intensity by placing their equipment deeper in the ground.
71. What’s the best title for the passage?
A.A new way to help predict earthquakes.
B.The earthquakes in the world
C.A better understanding of earthquake
D.Scientists and modern systems of earthquakes
72.If the new method does work, _______.
A.fewer earthquakes will break out
B.rescue workers can save more buried people in ruins
C.a warning can be given at least ten days before the major earthquake
D.fewer people will be killed in an earthquake
73.According to the passage, the devices can predict the earthquake by______
reaching the center of the earthquake
detecting the temperature changes in the earth’s crust
measuring changes in air pressure on the Earth’s surface
recording sound waves under the ground
74.We can infer from the passage that ______.
the equipment is perfect enough to be used in practice
it’s unknown if greater earthquake can be predicted by the equipment
the deeper the equipment is placed, the more accurate the measurement is
the equipment has helped save many lives in the earthquake in Haiti .
75.How many earthquakes are mentioned in the passage?
A. One           B. Two           C. Three         D. Four